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Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly
[Image: see text] Block copolymer nanoparticles prepared via polymerization-induced self-assembly (PISA) represent an emerging class of organic Pickering emulsifiers. Such nanoparticles are readily prepared by chain-extending a soluble homopolymer precursor using a carefully selected second monomer...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7884006/ https://www.ncbi.nlm.nih.gov/pubmed/33325720 http://dx.doi.org/10.1021/acs.langmuir.0c02595 |
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author | Hunter, Saul J. Armes, Steven P. |
author_facet | Hunter, Saul J. Armes, Steven P. |
author_sort | Hunter, Saul J. |
collection | PubMed |
description | [Image: see text] Block copolymer nanoparticles prepared via polymerization-induced self-assembly (PISA) represent an emerging class of organic Pickering emulsifiers. Such nanoparticles are readily prepared by chain-extending a soluble homopolymer precursor using a carefully selected second monomer that forms an insoluble block in the chosen solvent. As the second block grows, it undergoes phase separation that drives in situ self-assembly to form sterically stabilized nanoparticles. Conducting such PISA syntheses in aqueous solution leads to hydrophilic nanoparticles that enable the formation of oil-in-water emulsions. Alternatively, hydrophobic nanoparticles can be prepared in non-polar media (e.g., n-alkanes), which enables water-in-oil emulsions to be produced. In this review, the specific advantages of using PISA to prepare such bespoke Pickering emulsifiers are highlighted, which include fine control over particle size, copolymer morphology, and surface wettability. This has enabled various fundamental scientific questions regarding Pickering emulsions to be addressed. Moreover, block copolymer nanoparticles can be used to prepare Pickering emulsions over various length scales, with mean droplet diameters ranging from millimeters to less than 200 nm. |
format | Online Article Text |
id | pubmed-7884006 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-78840062021-02-16 Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly Hunter, Saul J. Armes, Steven P. Langmuir [Image: see text] Block copolymer nanoparticles prepared via polymerization-induced self-assembly (PISA) represent an emerging class of organic Pickering emulsifiers. Such nanoparticles are readily prepared by chain-extending a soluble homopolymer precursor using a carefully selected second monomer that forms an insoluble block in the chosen solvent. As the second block grows, it undergoes phase separation that drives in situ self-assembly to form sterically stabilized nanoparticles. Conducting such PISA syntheses in aqueous solution leads to hydrophilic nanoparticles that enable the formation of oil-in-water emulsions. Alternatively, hydrophobic nanoparticles can be prepared in non-polar media (e.g., n-alkanes), which enables water-in-oil emulsions to be produced. In this review, the specific advantages of using PISA to prepare such bespoke Pickering emulsifiers are highlighted, which include fine control over particle size, copolymer morphology, and surface wettability. This has enabled various fundamental scientific questions regarding Pickering emulsions to be addressed. Moreover, block copolymer nanoparticles can be used to prepare Pickering emulsions over various length scales, with mean droplet diameters ranging from millimeters to less than 200 nm. American Chemical Society 2020-12-16 2020-12-29 /pmc/articles/PMC7884006/ /pubmed/33325720 http://dx.doi.org/10.1021/acs.langmuir.0c02595 Text en © 2020 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Hunter, Saul J. Armes, Steven P. Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly |
title | Pickering Emulsifiers Based on Block Copolymer Nanoparticles
Prepared by Polymerization-Induced Self-Assembly |
title_full | Pickering Emulsifiers Based on Block Copolymer Nanoparticles
Prepared by Polymerization-Induced Self-Assembly |
title_fullStr | Pickering Emulsifiers Based on Block Copolymer Nanoparticles
Prepared by Polymerization-Induced Self-Assembly |
title_full_unstemmed | Pickering Emulsifiers Based on Block Copolymer Nanoparticles
Prepared by Polymerization-Induced Self-Assembly |
title_short | Pickering Emulsifiers Based on Block Copolymer Nanoparticles
Prepared by Polymerization-Induced Self-Assembly |
title_sort | pickering emulsifiers based on block copolymer nanoparticles
prepared by polymerization-induced self-assembly |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7884006/ https://www.ncbi.nlm.nih.gov/pubmed/33325720 http://dx.doi.org/10.1021/acs.langmuir.0c02595 |
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